Keep the battery healthy.
Keep going.

01 / Charge range

Match the charge routine to the chemistry.

The familiar 20–80% routine mainly applies to nickel-based NMC and NCA EVs: it is a sensible daily target when you do not need the range. It is not a universal rule. LFP EVs are designed to use a wider 0–100% indicated range safely, although you should never leave any battery genuinely empty or full and hot for days. Check the vehicle manual first.

02 / Chemistry

Know whether your battery is NMC, NCA or LFP.

• NMC and NCA: around 80% is a useful daily limit; charge higher for a trip and avoid leaving the pack at 100% for long periods.
• LFP: the 20–80% rule is not the default. 0–100% indicated charging is normally acceptable, and a periodic low-to-full cycle helps the BMS keep the state-of-charge estimate accurate.
• For LFP, when the manual permits it, let the indicated charge fall below about 10% occasionally, then charge uninterrupted to 100%. Do not deliberately run the vehicle to true zero or leave it empty.
• Always follow the vehicle manufacturer because the ideal routine varies by model.

03 / Storage

Do not leave the battery almost empty.

If you arrive with 5–10% remaining, plug in rather than parking for days nearly empty. For storage lasting weeks, 40–60% is generally comfortable unless the manufacturer says otherwise.

04 / Charging

Use AC charging for routine use.

Slow or moderate AC charging is usually the gentlest everyday option. Use DC fast charging for long journeys or when you need it; higher power creates more heat and repeated high-power charging may accelerate degradation.

05 / Driving

Avoid unnecessary full-power acceleration.

Occasional rapid acceleration is normal. Repeated hard launches demand high current, create heat, increase energy use and add tyre and powertrain stress. Smooth acceleration is kinder and more efficient.

06 / Efficiency

Use Eco mode when it suits the drive.

Eco mode commonly softens accelerator response, reduces power demand and optimises air-conditioning. It is especially useful for commuting and city driving, but does not need to be on all the time.

07 / Regeneration

Regenerate smoothly.

Anticipate traffic and slow gradually so more kinetic energy can return to the battery. Accelerating hard and then braking heavily wastes energy as heat and can require the friction brakes.

08 / Heat

Protect the battery from prolonged heat.

Heat accelerates chemical ageing. In Bangladesh, choose shade or covered parking when practical, maintain the battery cooling system and follow the manufacturer’s advice about leaving the vehicle plugged in so thermal management can operate.

09 / Fast charging

Precondition before a DC session.

If the EV supports battery preconditioning, navigate to the fast charger with the car’s own navigation. A battery at the right temperature can charge faster, more efficiently and with less unnecessary stress.

10 / Equipment

Use good-quality chargers.

Choose manufacturer-recommended or reputable EVSE with certification, proper grounding, correct breakers and electrical protection. A charger handles high power for hours; saving on unknown equipment is rarely worthwhile.

11 / Home wiring

Have the electrical installation checked.

A qualified electrician should verify cable size, circuit capacity, earthing, MCB/MCCB, RCD/RCCB, surge protection, connector quality and heat buildup. Do not regularly charge through a questionable extension cable, adapter or damaged socket.

12 / Long trips

Charge to 100% just before you leave.

There is nothing wrong with a full charge when maximum range is needed. Schedule it to finish shortly before departure instead of leaving the vehicle at 100% for days.